java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT-LIM.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem19_label00_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-63daa26 [2018-11-12 19:47:01,548 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-12 19:47:01,552 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-12 19:47:01,565 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-12 19:47:01,565 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-12 19:47:01,566 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-12 19:47:01,567 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-12 19:47:01,570 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-12 19:47:01,573 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-12 19:47:01,574 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-12 19:47:01,575 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-12 19:47:01,575 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-12 19:47:01,578 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-12 19:47:01,580 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-12 19:47:01,583 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-12 19:47:01,584 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-12 19:47:01,585 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-12 19:47:01,588 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-12 19:47:01,594 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-12 19:47:01,600 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-12 19:47:01,601 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-12 19:47:01,605 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-12 19:47:01,609 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-12 19:47:01,609 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-12 19:47:01,609 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-12 19:47:01,611 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-12 19:47:01,611 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-12 19:47:01,616 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-12 19:47:01,616 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-12 19:47:01,620 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-12 19:47:01,621 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-12 19:47:01,622 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-12 19:47:01,622 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-12 19:47:01,622 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-12 19:47:01,625 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-12 19:47:01,625 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-12 19:47:01,626 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT-LIM.epf [2018-11-12 19:47:01,655 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-12 19:47:01,655 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-12 19:47:01,656 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-12 19:47:01,656 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-12 19:47:01,657 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-12 19:47:01,657 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-12 19:47:01,657 INFO L133 SettingsManager]: * Maximum recursion depth of evaluation operations=6 [2018-11-12 19:47:01,657 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-12 19:47:01,658 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-12 19:47:01,658 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-12 19:47:01,658 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-12 19:47:01,658 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-12 19:47:01,658 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-12 19:47:01,659 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-12 19:47:01,659 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-12 19:47:01,659 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-12 19:47:01,660 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-12 19:47:01,660 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-12 19:47:01,660 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-12 19:47:01,660 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-12 19:47:01,660 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-12 19:47:01,661 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-12 19:47:01,661 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-12 19:47:01,661 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-12 19:47:01,661 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-12 19:47:01,661 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-12 19:47:01,662 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-12 19:47:01,662 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-12 19:47:01,662 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-12 19:47:01,662 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-12 19:47:01,662 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-12 19:47:01,662 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-12 19:47:01,663 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-12 19:47:01,663 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-12 19:47:01,663 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-12 19:47:01,720 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-12 19:47:01,739 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-12 19:47:01,743 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-12 19:47:01,745 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-12 19:47:01,746 INFO L276 PluginConnector]: CDTParser initialized [2018-11-12 19:47:01,746 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label00_true-unreach-call.c [2018-11-12 19:47:01,813 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6895165b5/73f189575f534e4c9235f1ab4b5279ea/FLAG01a7c58f0 [2018-11-12 19:47:02,727 INFO L298 CDTParser]: Found 1 translation units. [2018-11-12 19:47:02,728 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label00_true-unreach-call.c [2018-11-12 19:47:02,779 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6895165b5/73f189575f534e4c9235f1ab4b5279ea/FLAG01a7c58f0 [2018-11-12 19:47:02,797 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6895165b5/73f189575f534e4c9235f1ab4b5279ea [2018-11-12 19:47:02,810 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-12 19:47:02,813 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-12 19:47:02,814 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-12 19:47:02,814 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-12 19:47:02,818 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-12 19:47:02,819 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 07:47:02" (1/1) ... [2018-11-12 19:47:02,823 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43d31dcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:47:02, skipping insertion in model container [2018-11-12 19:47:02,823 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 07:47:02" (1/1) ... [2018-11-12 19:47:02,835 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-12 19:47:03,097 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-12 19:47:05,126 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 19:47:05,131 INFO L189 MainTranslator]: Completed pre-run [2018-11-12 19:47:06,449 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 19:47:06,505 INFO L193 MainTranslator]: Completed translation [2018-11-12 19:47:06,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:47:06 WrapperNode [2018-11-12 19:47:06,506 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-12 19:47:06,508 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-12 19:47:06,508 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-12 19:47:06,508 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-12 19:47:06,919 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:47:06" (1/1) ... [2018-11-12 19:47:07,019 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:47:06" (1/1) ... [2018-11-12 19:47:07,031 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-12 19:47:07,032 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-12 19:47:07,032 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-12 19:47:07,032 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-12 19:47:07,043 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:47:06" (1/1) ... [2018-11-12 19:47:07,044 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:47:06" (1/1) ... [2018-11-12 19:47:07,089 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:47:06" (1/1) ... [2018-11-12 19:47:07,089 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:47:06" (1/1) ... [2018-11-12 19:47:07,305 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:47:06" (1/1) ... [2018-11-12 19:47:07,354 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:47:06" (1/1) ... [2018-11-12 19:47:07,446 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:47:06" (1/1) ... [2018-11-12 19:47:07,545 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-12 19:47:07,546 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-12 19:47:07,546 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-12 19:47:07,546 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-12 19:47:07,547 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:47:06" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-12 19:47:07,615 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-12 19:47:07,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-12 19:47:07,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-12 19:47:07,616 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2018-11-12 19:47:07,616 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2018-11-12 19:47:07,616 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2018-11-12 19:47:07,616 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2018-11-12 19:47:07,616 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-11-12 19:47:07,617 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-11-12 19:47:07,617 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-11-12 19:47:07,617 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-11-12 19:47:07,617 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-12 19:47:07,617 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-12 19:47:07,618 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-12 19:47:07,618 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-12 19:47:07,618 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-12 19:47:07,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-12 19:47:07,618 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-12 19:47:07,618 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-12 19:47:22,014 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-12 19:47:22,015 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 07:47:22 BoogieIcfgContainer [2018-11-12 19:47:22,015 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-12 19:47:22,016 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-12 19:47:22,016 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-12 19:47:22,019 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-12 19:47:22,020 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 07:47:02" (1/3) ... [2018-11-12 19:47:22,020 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f2ded6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 07:47:22, skipping insertion in model container [2018-11-12 19:47:22,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:47:06" (2/3) ... [2018-11-12 19:47:22,021 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f2ded6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 07:47:22, skipping insertion in model container [2018-11-12 19:47:22,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 07:47:22" (3/3) ... [2018-11-12 19:47:22,023 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label00_true-unreach-call.c [2018-11-12 19:47:22,033 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-12 19:47:22,042 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-12 19:47:22,058 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-12 19:47:22,115 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-12 19:47:22,116 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-12 19:47:22,116 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-12 19:47:22,116 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-12 19:47:22,116 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-12 19:47:22,116 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-12 19:47:22,116 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-12 19:47:22,117 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-12 19:47:22,177 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states. [2018-11-12 19:47:22,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-11-12 19:47:22,187 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:47:22,188 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 19:47:22,190 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:47:22,195 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:47:22,196 INFO L82 PathProgramCache]: Analyzing trace with hash 367112186, now seen corresponding path program 1 times [2018-11-12 19:47:22,198 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:47:22,255 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:47:22,256 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:47:22,256 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:47:22,256 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:47:22,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:47:22,708 WARN L179 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-12 19:47:22,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 19:47:22,830 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 19:47:22,830 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-12 19:47:22,830 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:47:22,837 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-12 19:47:22,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-12 19:47:22,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-12 19:47:22,859 INFO L87 Difference]: Start difference. First operand 1778 states. Second operand 3 states. [2018-11-12 19:47:35,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:47:35,828 INFO L93 Difference]: Finished difference Result 4995 states and 9413 transitions. [2018-11-12 19:47:35,835 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-12 19:47:35,836 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2018-11-12 19:47:35,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:47:35,886 INFO L225 Difference]: With dead ends: 4995 [2018-11-12 19:47:35,886 INFO L226 Difference]: Without dead ends: 3215 [2018-11-12 19:47:35,899 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-12 19:47:35,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3215 states. [2018-11-12 19:47:36,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3215 to 3213. [2018-11-12 19:47:36,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3213 states. [2018-11-12 19:47:36,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3213 states to 3213 states and 5833 transitions. [2018-11-12 19:47:36,125 INFO L78 Accepts]: Start accepts. Automaton has 3213 states and 5833 transitions. Word has length 47 [2018-11-12 19:47:36,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:47:36,126 INFO L480 AbstractCegarLoop]: Abstraction has 3213 states and 5833 transitions. [2018-11-12 19:47:36,126 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-12 19:47:36,126 INFO L276 IsEmpty]: Start isEmpty. Operand 3213 states and 5833 transitions. [2018-11-12 19:47:36,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2018-11-12 19:47:36,142 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:47:36,143 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 19:47:36,143 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:47:36,144 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:47:36,145 INFO L82 PathProgramCache]: Analyzing trace with hash -1856794282, now seen corresponding path program 1 times [2018-11-12 19:47:36,145 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:47:36,146 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:47:36,146 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:47:36,146 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:47:36,148 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:47:36,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:47:36,599 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 19:47:36,600 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 19:47:36,600 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-12 19:47:36,600 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:47:36,603 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-12 19:47:36,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-12 19:47:36,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-12 19:47:36,605 INFO L87 Difference]: Start difference. First operand 3213 states and 5833 transitions. Second operand 5 states. [2018-11-12 19:48:06,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:48:06,111 INFO L93 Difference]: Finished difference Result 12249 states and 22701 transitions. [2018-11-12 19:48:06,111 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-12 19:48:06,112 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 121 [2018-11-12 19:48:06,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:48:06,160 INFO L225 Difference]: With dead ends: 12249 [2018-11-12 19:48:06,160 INFO L226 Difference]: Without dead ends: 9042 [2018-11-12 19:48:06,175 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-12 19:48:06,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9042 states. [2018-11-12 19:48:06,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9042 to 8959. [2018-11-12 19:48:06,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8959 states. [2018-11-12 19:48:06,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8959 states to 8959 states and 13234 transitions. [2018-11-12 19:48:06,456 INFO L78 Accepts]: Start accepts. Automaton has 8959 states and 13234 transitions. Word has length 121 [2018-11-12 19:48:06,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:48:06,457 INFO L480 AbstractCegarLoop]: Abstraction has 8959 states and 13234 transitions. [2018-11-12 19:48:06,457 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-12 19:48:06,457 INFO L276 IsEmpty]: Start isEmpty. Operand 8959 states and 13234 transitions. [2018-11-12 19:48:06,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2018-11-12 19:48:06,469 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:48:06,470 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 19:48:06,470 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:48:06,470 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:48:06,471 INFO L82 PathProgramCache]: Analyzing trace with hash 1738308994, now seen corresponding path program 1 times [2018-11-12 19:48:06,472 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:48:06,473 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:48:06,473 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:48:06,473 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:48:06,473 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:48:06,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:48:06,755 WARN L179 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-12 19:48:06,796 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 19:48:06,797 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 19:48:06,797 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-12 19:48:06,797 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:48:06,798 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-12 19:48:06,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-12 19:48:06,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-12 19:48:06,799 INFO L87 Difference]: Start difference. First operand 8959 states and 13234 transitions. Second operand 6 states. [2018-11-12 19:48:20,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:48:20,783 INFO L93 Difference]: Finished difference Result 21223 states and 31851 transitions. [2018-11-12 19:48:20,786 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-12 19:48:20,786 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 126 [2018-11-12 19:48:20,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:48:20,853 INFO L225 Difference]: With dead ends: 21223 [2018-11-12 19:48:20,853 INFO L226 Difference]: Without dead ends: 12270 [2018-11-12 19:48:20,882 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-12 19:48:20,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12270 states. [2018-11-12 19:48:21,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12270 to 12107. [2018-11-12 19:48:21,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12107 states. [2018-11-12 19:48:21,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12107 states to 12107 states and 17260 transitions. [2018-11-12 19:48:21,185 INFO L78 Accepts]: Start accepts. Automaton has 12107 states and 17260 transitions. Word has length 126 [2018-11-12 19:48:21,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:48:21,185 INFO L480 AbstractCegarLoop]: Abstraction has 12107 states and 17260 transitions. [2018-11-12 19:48:21,186 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-12 19:48:21,186 INFO L276 IsEmpty]: Start isEmpty. Operand 12107 states and 17260 transitions. [2018-11-12 19:48:21,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2018-11-12 19:48:21,188 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:48:21,188 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 19:48:21,189 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:48:21,189 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:48:21,189 INFO L82 PathProgramCache]: Analyzing trace with hash -2082641050, now seen corresponding path program 1 times [2018-11-12 19:48:21,189 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:48:21,190 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:48:21,190 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:48:21,190 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:48:21,191 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:48:21,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:48:21,459 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 19:48:21,459 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 19:48:21,459 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-12 19:48:21,459 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:48:21,460 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-12 19:48:21,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-12 19:48:21,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-12 19:48:21,461 INFO L87 Difference]: Start difference. First operand 12107 states and 17260 transitions. Second operand 6 states. [2018-11-12 19:48:36,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:48:36,698 INFO L93 Difference]: Finished difference Result 36870 states and 53681 transitions. [2018-11-12 19:48:36,698 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-12 19:48:36,698 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 129 [2018-11-12 19:48:36,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:48:36,974 INFO L225 Difference]: With dead ends: 36870 [2018-11-12 19:48:36,975 INFO L226 Difference]: Without dead ends: 24769 [2018-11-12 19:48:37,003 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-11-12 19:48:37,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24769 states. [2018-11-12 19:48:37,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24769 to 24360. [2018-11-12 19:48:37,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24360 states. [2018-11-12 19:48:37,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24360 states to 24360 states and 34038 transitions. [2018-11-12 19:48:37,483 INFO L78 Accepts]: Start accepts. Automaton has 24360 states and 34038 transitions. Word has length 129 [2018-11-12 19:48:37,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:48:37,483 INFO L480 AbstractCegarLoop]: Abstraction has 24360 states and 34038 transitions. [2018-11-12 19:48:37,483 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-12 19:48:37,484 INFO L276 IsEmpty]: Start isEmpty. Operand 24360 states and 34038 transitions. [2018-11-12 19:48:37,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2018-11-12 19:48:37,485 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:48:37,489 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 19:48:37,490 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:48:37,490 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:48:37,490 INFO L82 PathProgramCache]: Analyzing trace with hash 1549730492, now seen corresponding path program 1 times [2018-11-12 19:48:37,490 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:48:37,491 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:48:37,491 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:48:37,492 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:48:37,492 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:48:37,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:48:37,848 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 19:48:37,849 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 19:48:37,849 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-12 19:48:37,849 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:48:37,850 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-12 19:48:37,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-12 19:48:37,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-12 19:48:37,851 INFO L87 Difference]: Start difference. First operand 24360 states and 34038 transitions. Second operand 5 states. [2018-11-12 19:48:56,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:48:56,615 INFO L93 Difference]: Finished difference Result 75599 states and 108651 transitions. [2018-11-12 19:48:56,620 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-12 19:48:56,620 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 149 [2018-11-12 19:48:56,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:48:56,762 INFO L225 Difference]: With dead ends: 75599 [2018-11-12 19:48:56,762 INFO L226 Difference]: Without dead ends: 51245 [2018-11-12 19:48:56,816 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-12 19:48:56,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51245 states. [2018-11-12 19:48:57,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51245 to 49375. [2018-11-12 19:48:57,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49375 states. [2018-11-12 19:48:57,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49375 states to 49375 states and 63845 transitions. [2018-11-12 19:48:57,763 INFO L78 Accepts]: Start accepts. Automaton has 49375 states and 63845 transitions. Word has length 149 [2018-11-12 19:48:57,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:48:57,764 INFO L480 AbstractCegarLoop]: Abstraction has 49375 states and 63845 transitions. [2018-11-12 19:48:57,764 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-12 19:48:57,764 INFO L276 IsEmpty]: Start isEmpty. Operand 49375 states and 63845 transitions. [2018-11-12 19:48:57,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2018-11-12 19:48:57,768 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:48:57,768 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 19:48:57,768 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:48:57,769 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:48:57,769 INFO L82 PathProgramCache]: Analyzing trace with hash -1873414750, now seen corresponding path program 1 times [2018-11-12 19:48:57,769 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:48:57,770 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:48:57,770 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:48:57,770 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:48:57,770 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:48:57,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:48:58,041 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 19:48:58,042 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 19:48:58,042 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-12 19:48:58,042 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:48:58,043 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-12 19:48:58,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-12 19:48:58,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-12 19:48:58,044 INFO L87 Difference]: Start difference. First operand 49375 states and 63845 transitions. Second operand 4 states. [2018-11-12 19:49:13,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:49:13,317 INFO L93 Difference]: Finished difference Result 179988 states and 251114 transitions. [2018-11-12 19:49:13,317 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-12 19:49:13,317 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 259 [2018-11-12 19:49:13,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:49:13,751 INFO L225 Difference]: With dead ends: 179988 [2018-11-12 19:49:13,751 INFO L226 Difference]: Without dead ends: 130619 [2018-11-12 19:49:13,915 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-12 19:49:14,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130619 states. [2018-11-12 19:49:16,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130619 to 130249. [2018-11-12 19:49:16,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130249 states. [2018-11-12 19:49:16,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130249 states to 130249 states and 172798 transitions. [2018-11-12 19:49:16,907 INFO L78 Accepts]: Start accepts. Automaton has 130249 states and 172798 transitions. Word has length 259 [2018-11-12 19:49:16,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:49:16,908 INFO L480 AbstractCegarLoop]: Abstraction has 130249 states and 172798 transitions. [2018-11-12 19:49:16,908 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-12 19:49:16,908 INFO L276 IsEmpty]: Start isEmpty. Operand 130249 states and 172798 transitions. [2018-11-12 19:49:16,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 576 [2018-11-12 19:49:16,929 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:49:16,930 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 19:49:16,930 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:49:16,930 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:49:16,930 INFO L82 PathProgramCache]: Analyzing trace with hash -1006243321, now seen corresponding path program 1 times [2018-11-12 19:49:16,930 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:49:16,931 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:49:16,931 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:49:16,931 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:49:16,932 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:49:17,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:49:17,646 INFO L134 CoverageAnalysis]: Checked inductivity of 530 backedges. 335 proven. 98 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2018-11-12 19:49:17,646 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:49:17,646 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 19:49:17,648 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 576 with the following transitions: [2018-11-12 19:49:17,650 INFO L202 CegarAbsIntRunner]: [0], [1], [5227], [5234], [5242], [5250], [5258], [5266], [5274], [5282], [5290], [5298], [5306], [5314], [5322], [5330], [5338], [5346], [5354], [5362], [5370], [5378], [5386], [5394], [5402], [5410], [5418], [5426], [5434], [5442], [5450], [5458], [5466], [5474], [5482], [5490], [5498], [5502], [5504], [5507], [5515], [5523], [5531], [5539], [5547], [5555], [5563], [5571], [5579], [5587], [5595], [5603], [5611], [5619], [5627], [5635], [5643], [5651], [5659], [5667], [5675], [5683], [5691], [5699], [5707], [5715], [5727], [5731], [5742], [5746], [5750], [5754], [5758], [5762], [5766], [5770], [5774], [5778], [5782], [5786], [5797], [5808], [5819], [5823], [5827], [5838], [5842], [5846], [5850], [5854], [5858], [5862], [5866], [5870], [5874], [5877], [5878], [5882], [5886], [5890], [5894], [5898], [5902], [5906], [5910], [5914], [5918], [5922], [5926], [5930], [5934], [5938], [5942], [5946], [5950], [5954], [5958], [5962], [5966], [5977], [5981], [5985], [5996], [6000], [6004], [6008], [6012], [6016], [6020], [6024], [6028], [6032], [6036], [6040], [6051], [6055], [6059], [6063], [6067], [6071], [6075], [6079], [6083], [6087], [6091], [6102], [6106], [6110], [6121], [6125], [6129], [6140], [6144], [6148], [6152], [6156], [6160], [6164], [6168], [6172], [6176], [6180], [6184], [6188], [6192], [6196], [6200], [6204], [6208], [6212], [6216], [6220], [6224], [6228], [6232], [6236], [6240], [6251], [6255], [6259], [6263], [6267], [6278], [6282], [6286], [6290], [6294], [6298], [6302], [6306], [6310], [6314], [6325], [6329], [6333], [6344], [6348], [6352], [6356], [6360], [6371], [6375], [6379], [6383], [6387], [6391], [6402], [6413], [6417], [6420], [6421], [6425], [6429], [6432], [6437], [6439], [6802], [6806], [6810], [6816], [6820], [6822], [6837], [6838], [6839], [6841], [6842] [2018-11-12 19:49:17,713 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 19:49:17,713 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 19:49:18,603 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 19:49:18,618 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 19:49:18,620 INFO L272 AbstractInterpreter]: Visited 221 different actions 221 times. Never merged. Never widened. Performed 2601 root evaluator evaluations with a maximum evaluation depth of 6. Performed 2601 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Never found a fixpoint. Largest state had 26 variables. [2018-11-12 19:49:18,673 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:49:18,673 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 19:49:20,707 INFO L227 lantSequenceWeakener]: Weakened 561 states. On average, predicates are now at 75.19% of their original sizes. [2018-11-12 19:49:20,707 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 19:49:21,090 INFO L415 sIntCurrentIteration]: We unified 574 AI predicates to 574 [2018-11-12 19:49:21,090 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 19:49:21,091 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 19:49:21,091 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2018-11-12 19:49:21,092 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:49:21,092 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-12 19:49:21,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-12 19:49:21,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-11-12 19:49:21,093 INFO L87 Difference]: Start difference. First operand 130249 states and 172798 transitions. Second operand 7 states. Received shutdown request... [2018-11-12 19:50:31,658 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-12 19:50:31,658 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-12 19:50:31,663 WARN L205 ceAbstractionStarter]: Timeout [2018-11-12 19:50:31,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 07:50:31 BoogieIcfgContainer [2018-11-12 19:50:31,664 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-12 19:50:31,665 INFO L168 Benchmark]: Toolchain (without parser) took 208854.03 ms. Allocated memory was 1.5 GB in the beginning and 5.4 GB in the end (delta: 3.8 GB). Free memory was 1.4 GB in the beginning and 2.7 GB in the end (delta: -1.2 GB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. [2018-11-12 19:50:31,666 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-12 19:50:31,667 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3693.75 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 403.3 MB). Peak memory consumption was 403.3 MB. Max. memory is 7.1 GB. [2018-11-12 19:50:31,668 INFO L168 Benchmark]: Boogie Procedure Inliner took 523.63 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 854.6 MB). Free memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 98.9 MB. Max. memory is 7.1 GB. [2018-11-12 19:50:31,669 INFO L168 Benchmark]: Boogie Preprocessor took 513.66 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 51.6 MB). Peak memory consumption was 51.6 MB. Max. memory is 7.1 GB. [2018-11-12 19:50:31,670 INFO L168 Benchmark]: RCFGBuilder took 14469.15 ms. Allocated memory was 2.4 GB in the beginning and 2.5 GB in the end (delta: 149.9 MB). Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 507.4 MB). Peak memory consumption was 657.3 MB. Max. memory is 7.1 GB. [2018-11-12 19:50:31,670 INFO L168 Benchmark]: TraceAbstraction took 189648.06 ms. Allocated memory was 2.5 GB in the beginning and 5.4 GB in the end (delta: 2.8 GB). Free memory was 1.7 GB in the beginning and 2.7 GB in the end (delta: -910.3 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. [2018-11-12 19:50:31,676 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 3693.75 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 403.3 MB). Peak memory consumption was 403.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 523.63 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 854.6 MB). Free memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 98.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 513.66 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 51.6 MB). Peak memory consumption was 51.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 14469.15 ms. Allocated memory was 2.4 GB in the beginning and 2.5 GB in the end (delta: 149.9 MB). Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 507.4 MB). Peak memory consumption was 657.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 189648.06 ms. Allocated memory was 2.5 GB in the beginning and 5.4 GB in the end (delta: 2.8 GB). Free memory was 1.7 GB in the beginning and 2.7 GB in the end (delta: -910.3 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 136]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 136). Cancelled while BasicCegarLoop was constructing difference of abstraction (130249states) and FLOYD_HOARE automaton (currently 7 states, 7 states before enhancement),while ReachableStatesComputation was computing reachable states (146775 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 1778 locations, 1 error locations. TIMEOUT Result, 189.5s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 177.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 6548 SDtfs, 32673 SDslu, 4689 SDs, 0 SdLazy, 58268 SolverSat, 13033 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 119.6s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 624 GetRequests, 585 SyntacticMatches, 3 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=130249occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 1.0s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.998879302034127 AbsIntWeakeningRatio, 0.06097560975609756 AbsIntAvgWeakeningVarsNumRemoved, 19.574912891986063 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 5.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 2897 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 1406 NumberOfCodeBlocks, 1406 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1399 ConstructedInterpolants, 0 QuantifiedInterpolants, 1448327 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 6 PerfectInterpolantSequences, 632/730 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown